Rchr
J-GLOBAL ID:201901010108024535
Update date: Feb. 13, 2024
YUDAI SHIGEKAWA
シゲカワ ユウダイ | YUDAI SHIGEKAWA
Affiliation and department:
Job title:
Postdoctoral Researcher
Research field (2):
Theoretical studies related to particle-, nuclear-, cosmic ray and astro-physics
, Inorganic and coordination chemistry
Research keywords (12):
magnetic bottle
, nuclear clock
, radiochemistry
, nuclear chemistry
, super heavy elements
, electron spectroscopy
, internal conversion
, half-life variation
, thorium
, uranium
, 235U
, 229Th
Research theme for competitive and other funds (8):
- 2023 - 2027 トリウム229核異性体の内部転換抑制手法の開発によるガンマ線放出過程の解明
- 2022 - 2025 光子対診断治療学の総括
- 2022 - 2025 もつれ光子対放出原子核と分子プローブの創成による生体内化学環境の医療診断
- 2021 - 2025 レーザーによるコヒーレントな原子核操作の実現ー原子核時計の創成と応用に向けて
- 2020 - 2023 Observing the electron bridge process of the Th-229 isomer utilizing ion-molecule reactions
- 2016 - 2021 Elucidation of the nuclear decay property of Th-229m utilizing Ac-229
- 2016 - 2019 化学状態により変化するTh-229mの核壊変機構の解明
- 2013 - 2016 Variations of the decay modes of 235mU and 229mTh depending on the chemical environment
Show all
Papers (27):
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Takahiro Hiraki, Kjeld Beeks, Michael Bartokos, Hiroyuki Fujimoto, Yuta Fukunaga, Hiromitsu Haba, Yoshitaka Kasamatsu, Shinji Kitao, Adrian Leitner, Takahiko Masuda, et al. Experimental apparatus for detection of radiative decay of $$^{229}$$Th isomer from Th-doped CaF$$_2. Hyperfine Interactions. 2024. 245. 1
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Yudai Shigekawa, Xiaojie Yin, Akihiro Nambu, Yang Wang, Hiromitsu Haba. Production and chemical separation of 229Pa toward observation of γ rays of 229mTh. Journal of Radioanalytical and Nuclear Chemistry. 2023
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S. Takatori, Y. Fukunaga, M. Guan, T. Hiraki, T. Masuda, R. Ogake, K. Okai, N. Sasao, K. Shimizu, S. Uetake, et al. Vacuum Tltraviolet Search from Thorium-229 Isomer in Crystal Toward Solid-State Nuclear Clock. 2023 Joint Conference of the European Frequency and Time Forum and IEEE International Frequency Control Symposium (EFTF/IFCS). 2023
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Linlin Yan, Mizuki Uenomachi, Taisei Ueki, Donghwan Kim, Kenji Shimazoe, Hiroyuki Takahashi, Kei Kamada, Yudai Shigekawa, Akihiro Nambu, Xiaojie Yin, et al. Simultaneous multi-nuclide imaging via reconstruction-free double-photon emission coincidence imaging method with parallel hole collimator and slat collimator. Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment. 2023. 168305-168305
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Hiroki Takashima, Kazunobu Ohnuki, Shino Manabe, Yoshikatsu Koga, Ryo Tsumura, Takahiro Anzai, Yang Wang, Xiaojie Yin, Nozomi Sato, Yudai Shigekawa, et al. Tumor Targeting of 211At-Labeled Antibody under Sodium Ascorbate Protection against Radiolysis. Molecular Pharmaceutics. 2022. 20. 2. 1156-1167
more...
MISC (10):
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福永優太, BEEKS Kjeld, 藤本弘之, 平木貴宏, GUAN M., 羽場宏光, 笠松良崇, 北尾真司, 小無健司, 増田孝彦, et al. Development of nuclear resonant scattering target for thorium-229 isomer level search. 日本物理学会講演概要集(CD-ROM). 2023. 78. 1
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平木貴宏, BEEKS Kjeld, 藤本弘之, 福永優太, GUAN M., 羽場宏光, 笠松良崇, 北尾真司, 小無健司, 増田孝彦, et al. Search for vacuum-ultraviolet photon by deexcitation of the nuclear isomeric state of thorium-229. 日本物理学会講演概要集(CD-ROM). 2023. 78. 1
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高島 大輝, 大貫 和信, 眞鍋 史乃, 古賀 宣勝, 津村 遼, 安西 高廣, 王 洋, 殷 小杰, 佐藤 望, 重河 優大, et al. アスコルビン酸Naは放射線分解による能動的標的化の障害からアスタチン-211結合抗体を保護する(Sodium ascorbate protection against radiolysis is indispensable to maintain active targeting of 211At-labeled antibody). 日本癌学会総会記事. 2022. 38回. 96-96
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重河優大, 山口敦史, 鈴木健太, 羽場宏光, 平木貴宏, 菊永英寿, 西村俊二, 笹尾登, 吉見彰洋, 吉村浩司. Half-life determination of nuclear excited states of 229Th by the α-γ coincidence measurement of 233U. 日本放射化学会討論会(Web). 2020. 64th
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海野弘行, 羽場宏光, 原秀明, 平木貴宏, 藤枝亮, 藤本弘之, 笠松良崇, 北尾真司, 小無健司, 増田孝彦, et al. Search for VUV signal from isomer level of Th-229. 日本物理学会講演概要集(CD-ROM). 2020. 75. 1
more...
Lectures and oral presentations (22):
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Progress toward observing γ-rays emitted from <sup>229m</sup>Th by doping fluoride crystals with <sup>229</sup>Pa
(5th International Conference on Application of RadiotraCers and Energetic Beams in Sciences (ARCEBS 2023) 2023)
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Th-229mのγ線観測に向けたPa-229のフッ化物結晶への導入法及び光子測定装置の開発
(日本放射化学会第66回討論会(2022) 2022)
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Th-229mの壊変特性の解明に向けた高周波イオン収集・質量分離装置の開発
(日本放射化学会第65回討論会(2021) 2021)
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U-233のα-γ同時計数測定によるTh-229の原子核励起状態の半減期の決定
(2020)
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核化学研究用高周波イオン収集システムの開発
(日本放射化学会第64回討論会(2020) 2020)
more...
Education (3):
- 2016 - 2019 Osaka University Graduate School of Science Department of Chemistry
- 2014 - 2016 Osaka University Graduate School of Science Department of Chemistry
- 2010 - 2014 Osaka University Undergraduate School of Science Department of Chemistry
Professional career (1):
- Dr. Sci. (Osaka University)
Work history (5):
- 2023/04 - 現在 RIKEN RIKEN Nishina Center for Accelerator-Based Science, Nuclear Chemistry Group Postdoctoral Researcher
- 2022/04 - 2023/03 RIKEN Nuclear Chemistry Research Team, RI Application Research Group, RIKEN Nishina Center for Accelerator-Based Science Postdoctoral Researcher
- 2019/04 - 2022/03 RIKEN Nuclear Chemistry Research Team, RI Application Research Group, RIKEN Nishina Center for Accelerator-Based Science Special Postdoctoral Researcher (SPDR)
- 2016/04 - 2019/03 JSPS JSPS research fellow (DC1)
- 2018/10 - 2018/10 JSPS JSPS research fellow (PD) withdrawal
Awards (4):
- 2023/03 - RIKEN RIKEN Ohbu Research Incentive Award Estimation of radiative half-life of <sup>229m</sup>Th by half-life measurement of other nuclear excited states in <sup>229</sup>Th
- 2018/09 - 日本放射化学会 若手優秀発表賞 阻止電場ー磁気ボトル型電子分光装置の開発およびU-235mの内部転換電子分光測定
- 2017/09 - 日本放射化学会 若手優秀発表賞 <sup>233</sup>Uのα線-電子コインシデンス測定による<sup>229</sup>Thの内部転換電子観測の試み
- 2014/09 - 日本放射化学会 若手優秀発表賞 U-235mの脱励起過程の研究に向けた反跳核捕集装置の開発
Association Membership(s) (3):
THE CHEMICAL SOCIETY OF JAPAN
, THE PHYSICAL SOCIETY OF JAPAN
, THE JAPAN SOCIETY OF NUCLEAR AND RADIOCHEMICAL SCIENCES
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